EP 0326479 B1 19930526 - DETECTOR FOR X-RAY TOMOGRAPHY
Title (en)
DETECTOR FOR X-RAY TOMOGRAPHY
Publication
Application
Priority
FR 8800855 A 19880126
Abstract (en)
[origin: EP0326479A1] This detector includes a sealed chamber (4) containing a gas which can be ionised by X-rays having passed through an organ or an object. This chamber comprises on a front face, an X-ray inlet window (5), and contains an X-ray detection unit (11). Connection means (27, 28, 29, 32, 33) pass through a rear face (9) of the chamber in order to connect the detection means with measurement (14) and supply (15, 16) means outside the chamber. The detection means comprise electrodes (19) and a polarising plate (18) which are separated by a radiation-transparent insulating spacer (3). According to the invention this spacer has the shape of a frame. This frame bears, on the one hand, on the polarising plate (18) and, on the other hand, on conductive strips (22, 24) brought to the same reference potential (16) as that of the electrodes. <??>Application to X-ray tomography. <IMAGE>
IPC 1-7
IPC 8 full level
A61B 6/03 (2006.01); G01T 1/161 (2006.01); G01T 1/29 (2006.01); H01J 47/02 (2006.01)
CPC (source: EP US)
G01T 1/2935 (2013.01 - EP US); H01J 47/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0326479 A1 19890802; EP 0326479 B1 19930526; DE 68906681 D1 19930701; DE 68906681 T2 19931118; FR 2626379 A1 19890728; FR 2626379 B1 19900511; JP H02206790 A 19900816; US 4912736 A 19900327
DOCDB simple family (application)
EP 89400194 A 19890124; DE 68906681 T 19890124; FR 8800855 A 19880126; JP 1738389 A 19890126; US 30106189 A 19890125